Finding the Fourth Proportional to 2,318,138.91, 3,199,041.05 and 1,285,743.08
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Solution
The fourth proportional to 2,318,138.91, 3,199,041.05 and 1,285,743.08 is: 1,774,330.63
Step by Step Solution
- Step 1: Write the proportion equation
2,318,138.91 : 3,199,041.05 = 1,285,743.08 : x - Step 2: Convert to fraction form
2,318,138.91/3,199,041.05 = 1,285,743.08/x - Step 3: Cross multiply
2,318,138.91x = 3,199,041.05 × 1,285,743.08 - Step 4: Simplify right side
2,318,138.91x = 4,113,144,870,249.51 - Step 5: Solve for x
x = 4,113,144,870,249.51/2,318,138.91 - Step 6: Final answer
x = 1,774,330.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.